Adjustable electric lamp.



' UNITED 1 STATES PATE RALPH D. CHANDLER, OF SIPICEIIAND,y INDIANA.

oEEioE.

ADJUSTABLE ELECTRIC LAMP.

ySpecification of Letters Patent.

Patented Feb. 8, 1916.

Application filed September 21, 1914;. Serial No. 862,804. i

To all whom t may concern: l

Be it known that. I RALPH D. CHANDLER a citizen of the United States, residing at Spiceland, in the county of Henry, State of Indiana, have invented certain new .and

useful Improvementsjn Adjustable Electric Lamps; and I do hereby declare the following to be a full, clear, and exact description.

of the invention, such as will enable others skilled in the art to which it appertains-to make and use the same.

This invention relates 'to electric lamps', and has for its object the provision of an electric lamp which may be adjusted to any desired position.'

Aniinportant object is the provision of a device of this character which will be simple and inexpensive in manufacture, etlicient vand durable lin use, neat in appearance and a general improvement of the art.

With these and other objects and advantages in view, the invention consists inthe novel construction and arrangement'of parts as will be hereinafter'inore fully described and claimed, andillustrated in the accompanying drawing, in whicli- Figure 11s a! side elevation of my lamp constructed as a. wall lamp, Fig. 2 is a perspective View, Fig. 3 is a sectional view on the line 3-3 of Fig. l.

Referring inoreparticularly to the drawing and especially to Figs. l, 2 and 3, the

numeral 5 designates a plate provided with suitable holes for the passage of screws 6 whereby the plate may be secured upon a .wall or other desired place.' 'Formed upon or secured upon the plate 5 are forwardly extending arms 7 between which is pivotally i secured a 4member'8 by meansof a bolt 9 secured in place by a suitable nut-10. The member 8 is thus horizontally revohible be,

tween the arms 7. The front portion of the member 8 is provided with a recess 11 within which is pivoted as' by means of a bolt 19I a forwardly extending arm -13 which is therefore capable of swinging vertically.

The bolt 1Q is provided with a suitable nut' 14. lSecured uponthe forward end of the arm v13 s a key socket 15 lwhich passes through an opening in a concaved reflector 16 secured upon the forward end of the arm 18. An incandescent lamp' 17 isthreaded within the socket' 15 in the usual manner. l Wires 18 are connected with the socket 15 in the usual manner and extend alongv the arm through a hole 19 in the plate from which they lead to any suitable source of current.

.It will be observed that when the lamp is in use, it may be adjusted to throw the light-in any desired direction by virtue of the fact that the member 8 may. be movedv 13, through the member 8 and preferably I adapted to be rotated. said member' provided with a longitudinal slot and transverse openings communicating with said slot, a bolt arranged in the said transverse '(ipeiiings, a forwardly extending arm`piv.

oted on said bolt witliiiisaid slot and adapted to swing v"e.iticall`y a reflector on the end of said arin. a socket carried by tliefend of said arm and extending through said 're- Hector, and an incandescent lamp in said socket.

In testinony whereof. I atliX my signature, in the presence of two witnesses.

I 'Witnessesz H. E. MILLER, WM. TaoAUoH.

RALPHD. CHANDLER. 

